Well installations employing non-metallic lines, tubing casing and machinery

Claim 2

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, and (d) a well pump connected to said sleeve to be suspended within well casing.

Claim 3

The combination of claim 1 wherein said fibers form multiple rovings which are bonded together to form a generally circular unitary line, and including non-metallic cladding on the line exterior.

Claim 4

The combination of claim 2 including a bonding agent interconnecting said rovings to said sleeve and said plug.

Claim 5

The combination of claim 1 installed in a well to be reciprocated vertically therein, and including well tubing receiving the line, said tubing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0.

Claim 6

The combination of claim 1 wherein the line includes a succession of end-to-end interconnected sections, said sections having generally circular cross sections, successive sections along the line having decreasing diameters.

Claim 7

The combination of claim 1 wherein the taper angularity of the plug is no greater than about 30 minutes.

Claim 8

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, and (d) another line which is flexible and including surface means spooling said other line at the well head, said other line having a rectangular cross section, and there being a yoke having a transverse part about which said other line is connected, the yoke also connected to said sleeve in the well to support said first line therein.

Claim 9

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, and (d) another line which is flexible and including surface means spooling said other line at the well head, said other line having a rectangular cross section, and there being a yoke having a transverse part about which said other line is connected, the yoke also connected to said sleeve in the well to support said first line therein.

Claim 10

The combination of claim 7 including a well fluid pump in the well and having a vertically reciprocable element, there being a second metallic sleeve connected with the line and said element for operating the pump in response to up and down movement of said line effected by said surface means.

Claim 11

The combination of claim 7 including a wear part on the line having a transverse cross-section greater than that of the line.

Claim 12

The combination of claim 9 including casing receiving said line and having frictional contact with said wear part.

Claim 13

The combination of claim 7 including a float thereon adapted to exert buoyant force on the line when submersed in well fluid in the well.

Claim 14

The combination of claim 7 including a steel sucker rod connected in endwise relation with said sleeve.

Claim 15

The combination of claim 7 and including well casing installed in the well and receiving said line, said casing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0.

Claim 16

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, (d) well tubing receiving the line, said tubing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0, and (e) well casing installed in the well and receiving said line and tubing, the casing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0.

Claim 17

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, (d) well tubing receiving the line, said tubing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0, and (e) well casing installed in the well and receiving said line and tubing, the casing consisting of multiple non-metallic fibers having a tensile strength in excess of 185,000 psi and a specific gravity less than 2.0.

Claim 18

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, and (d) a well swab cup attached to said sleeve to engage well casing.

Claim 19

In a well installation, the combination comprising (a) an axially elongated first line sized to extend downwardly in the well and support well equipment therein, the line having an end portion, (b) said line consisting of multiple parallel non-metallic fibers having a tensile strength greater than 185,000 psi and having a specific gravity less than 2.0, (c) an externally axially tapered and elongated metallic plug centrally penetrating said end portion, and a metallic sleeve receiving said line end portion and said plug, said sleeve having an axially tapered bore and said fibers retained between said plug and said bore, said sleeve connected to said plug, and (d) a well swab cup attached to said sleeve to engage well casing.