Classifications

• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
  • E21B23/03—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets

Definitions

• the present invention relates generally to side pocket mandrel and kickover tool apparatus for placing and removing flow control devices in wells, and particularly to a new and improved side pocket mandrel having a unique channel and orienting sleeve combination for positively orienting and actuating a kickover tool being moved through the mandrel.
• the present invention also provides a new and improved kickover tool having an arm assembly that is oriented and pivoted outwardly due to cooperative engagement with a channel and sleeve in the mandrel.
• the kickover tool generally has an articulated arm assembly that is pivotally attached to an elongated tray, and an orienting and trigger mechanism that cooperates with a slot and shoulder in a "mule-shoe" orienting sleeve to rotationally orient the arm assembly with respect to the side pocket, and to release the arm assembly to pivot outward so that a flow control device coupled thereto can be inserted into the pocket. Once the flow control is latched in place, the arm assembly is released therefrom to permit the kickover tool to be removed from the well.
• Patents which illustrate typical prior devices are 2,824,525, 3,268,006, 3,741,299, 3,802,503, 4,106,503 and 4,106,564. More recent improvements in the art are disclosed and claimed in U.S. Patent Nos. and , filed in behalf of one or more of the present inventors
• An object of the present invention is to provide a new and improved side pocket mandrel having an orienting sleeve and channel construction that provides improved reliability of kickover tool operation and performance.
• An orienting sleeve having helical lower guide surfaces that lead to a vertical slot in the sleeve wall is fixed in a lower end section of the mandrel, and a longitudinal recess or channel is formed that is wider than the slot to provide an essentially "T-shaped" vertically extending recess.
• a side pocket mandrel 10 in accordance with the present invention includes an elongated body section 11 that is generally tubular, and which defines a main bore 12 and a side pocket region 13 that is offset laterally to the side of such main bore.
• a short-length valve seating sub 14 is welded at 15 to the upper end of the body 11, and has a polish bore receptacle 16 that opens to the outside of the mandrel 10 through an outer inclined surface 17 thereof.
• FIG. 3A Another structural arrangement forming a T-shaped channel is shown in Figure 3A.
• the orienting sleeve 133 fits in an eccentrically arranged counterbore 110 in the swage nipple 130, the centerline of the cylindrical inner wall surface 111 of the sleeve being aligned with the axis 23 of the mandrel bore 12.
• the longitudinal slot 137 in sleeve 133 is widened to the outside as shown to provide a pair of transverse wall surfaces 141, 142 and a second pair of side wall surfaces 112 that extend parallel to the side walls 144 of the slot 137.
• These wall surfaces, together with the adjacent inner wall surface 140 of the swage nipple 130 provide a T-shaped channel similar to that shown in Figure 3, except that there are no acute corners in which a wireline might become lodged.
• a number of the side pocket mandrels 10 are connected in the well production tubing at selected, vertically spaced locations.
• a flow control device 56 such as a gas lift valve
• the kickover tool 50 is assembled as shown in the drawings, and the valve and latch are attached by a running head to the upper end 82 of the arm 61.
• the kickover tool 50 then is attached by sinker bars and a set of jars to the end of the wireline, and lowered into the tubing.
• the arm assembly 57 is tucked in so that the arms and the valve lie within the elongated recess 55 of the tray body 54.
• the leaf spring 74 causes the upper outer surface 67 of the lower arm 60 to slide gently along the inner wall of the tubing as the tool 50 is lowered into the well.
• the kickover tool 50 has been lowered to a point below the mandrel 10 in which the valve 56 is to be set, the tool is stopped, and then raised slowly upward.
• the upper end portion 67 or "finger" of the lower arm 60 will 5 engage a helical lower surface 36 on the orienting sleeve 33, which causes the entire kickover tool 50 to rotationally index until the finger is aligned with the slot 37 (or 137 in the case of the embodiment shown in Figure 3A) .
• the finger 67 enters the slot 37, the
• the apparatus is relatively simple in construction and operation, to greatly enhance downhole reliability. Since the T-shaped projection of the lower arm of the kickover tool engages and slides in a channel in the mandrel, the arm assembly and valve are positively positioned in accurate alignment with the valve seating bore. During setting, the lower arm rests on the block, which engages the kickover tool body, so that impact jarring blows are not applied to the lower pivot pin. After setting has been accomplished, the arms are locked in retracted position by lowering the tool in the mandrel, or by engagement with a stop in the tubing.

Landscapes

• Geology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Environmental & Geological Engineering (AREA)
• Fluid Mechanics (AREA)
• Physics & Mathematics (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)
• Molds, Cores, And Manufacturing Methods Thereof (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Metal Extraction Processes (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=22539690

Family Applications (1)

Country Status (8)

Family Cites Families (6)

• 1989
  • 1989-01-24 WO PCT/US1989/000295 patent/WO1989007189A1/en active IP Right Grant
  • 1989-01-24 BR BR898907223A patent/BR8907223A/pt unknown
  • 1989-01-24 DE DE89902155T patent/DE68914442D1/de not_active Expired - Lifetime
  • 1989-01-24 AU AU30414/89A patent/AU629199B2/en not_active Ceased
  • 1989-01-24 JP JP1502007A patent/JPH03503664A/ja active Pending
  • 1989-01-24 EP EP89902155A patent/EP0400037B1/de not_active Expired - Lifetime
  • 1989-01-24 MX MX014642A patent/MX172479B/es unknown
  • 1989-02-02 CA CA000589856A patent/CA1302874C/en not_active Expired

Non-Patent Citations (1)

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