CN1936269A - Three-layer water-searching pipe column for oil-pumping well in oil field and water-searching method - Google Patents
Three-layer water-searching pipe column for oil-pumping well in oil field and water-searching method Download PDFInfo
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- CN1936269A CN1936269A CNA2006102010060A CN200610201006A CN1936269A CN 1936269 A CN1936269 A CN 1936269A CN A2006102010060 A CNA2006102010060 A CN A2006102010060A CN 200610201006 A CN200610201006 A CN 200610201006A CN 1936269 A CN1936269 A CN 1936269A
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Abstract
The invention relates to a pumping well three layers water research tubular pile and the water research method. It includes constant pressure check valve, down part changeable water research packer, middle packer, upper part packer that could bear pressure, water research switch valve, bar type oil pump. The water research method includes the following steps: installing tubular pile, taking sealing, swabbing down layer, swabbing middle layer and swabbing upper layer. The invention has reasonable compact structure. It could realize three layers water research through bar type oil pump and is convenient to operate.
Description
One, technical field:
The present invention relates to the technical field that the cooperation downhole packer carries out the water detection operation in the oil field operation, is three layers of searching pipe column of a kind of oil-pumping well in oil field and groundwater prospecting method thereof.
Two, background technology:
Present domestic oil field cooperates with downhole tool and oil well pump carries out water detection, fixed tubular column can realize that one-trip string looks for three layers, the method that adopts mainly contains two kinds, a kind of is to adopt regularly electric switching valve of down-hole, it relies on battery power to open automatically in setting-up time, close, three packers separate three intervals respectively, analyze the moisture situation of three layers by the oil well pump pumping; Another kind is to adopt three to be provided with different other switch valves of opening pressure level, and three packers with three intervals separately by suppressing by the different pressures rank from oil pipe or sleeve pipe, make three valves open respectively, cut out.But its complicated operation, operating cost height.
Three, summary of the invention:
The invention provides three layers of searching pipe column of a kind of oil-pumping well in oil field and groundwater prospecting method thereof, overcome the deficiency of above-mentioned prior art, it is simple in structure, constructing operation is convenient, one-trip string just can be finished all packer set, deblocking, only need that each beats once pressure from oil pipe and sleeve pipe, just can realize three layers of water detection by the insert pump pumping.
One of technical scheme of the present invention realizes by following measure: three layers of searching pipe column of a kind of oil-pumping well in oil field, it comprises constant pressure check valve, bottom interchangeable layer water detection packer, middle packer, top can unidirectional pressure-bearing packer, water detection switch valve and rod-type pumping unit, and be joined together to form tubing string with oil pipe by order from bottom to top, bottom interchangeable layer water detection packer adopts a reversal valve in its central tube, upper packer adopt have in it one way valve can unidirectional pressure-bearing packer or the cup packer that upper packer adopts its bowl-shape packing element opening to make progress.
Two of technical scheme of the present invention realizes by following measure: a kind of groundwater prospecting method that utilizes three layers of searching pipe column of above-mentioned oil-pumping well in oil field, and it is undertaken by following step:
The first step is installed three layers of searching pipe column of oil-pumping well in oil field, and packer, water detection switch valve and rod-type pumping unit that can unidirectional pressure-bearing with constant pressure check valve, bottom interchangeable layer water detection packer, middle packer, top be joined together to form behind the tubing string in the lower going-into-well with oil pipe by from bottom to top order:
Second step set, and after putting in place under the above-mentioned tubing string, set the packer that bottom interchangeable layer water detection packer, middle packer and top can unidirectional pressure-bearings, and three the water detection intervals in upper, middle and lower are separated respectively;
The 3rd the step pumping lower floor, the plunger of rod-type pumping unit is lowered to the pump work tube, the dress well head begins direct pumping lower floor, after lower floor's pumping is intact, sampling, analyze moisture;
The 4th goes on foot the pumping middle level, plunger with rod-type pumping unit proposes the pump work tube earlier, suppress from oil pipe then, switch valve cuts out lower floor's oil discharge passage in the bottom interchangeable layer water detection packer, simultaneously the middle level oil discharge passage is opened, the plunger of rod-type pumping unit is put back to the pump work tube again, and beginning pumping middle level takes a sample, analyzes moisture;
The 5th goes on foot the pumping upper strata, suppresses from well head oil jacket annular space, under setting pressure, the water detection switch valve on top is opened, simultaneously the middle level oil discharge passage is closed, the water detection switch valve that the packer that the output liquid on upper strata can unidirectional pressure-bearing through top enters top flows in the pump barrel, through sampling, analyze moisture.
Be further optimization and/or improvements below to the invention described above technical scheme:
Above-mentioned water detection switch valve can comprise top connection, adapter sleeve, piston bush and lower contact, at the middle part of top connection inlet opening in the upper strata is arranged, in the bottom of top connection inlet opening in the middle level is arranged, piston bush can be enclosed within the middle and lower part of top connection, the bottom of adapter sleeve is socketed in the top of lower contact, the top of adapter sleeve is enclosed within the outside of piston bush, the upper end of adapter sleeve is fixedly mounted in the top connection, inlet opening outside the upper strata is arranged at the top of adapter sleeve, piston bush can slide up and down in the annular chamber between top connection and the adapter sleeve, piston bush when the middle part of top connection, can make in the upper strata inlet opening close and in the middle level inlet opening open and communicate with the inner chamber of lower contact, piston bush the bottom of top connection Shi Neng make in the middle level inlet opening close and in the upper strata inlet opening open and communicate with inlet opening outside the upper strata.
Bottom in above-mentioned top connection can be equipped with snap ring.
Above-mentioned snap ring can be installed in the bottom of top connection by the snap ring pressure cap.
Above-mentioned piston bush can be fixedly mounted on the middle part of top connection by shear pin.
The draining hole can be arranged at the bottom of above-mentioned adapter sleeve.
Between above-mentioned adapter sleeve and lower contact, the anti-rotation pin can be installed.
Between above-mentioned top connection and the piston bush, between piston bush and the adapter sleeve, can have at least one at least one O-ring seals is installed between adapter sleeve and the lower contact.
At above-mentioned lower contact middle part the baffle ring that can block adapter sleeve can be installed.
Reasonable and compact in structure of the present invention, utilize three layers of searching pipe column of this oil-pumping well in oil field and groundwater prospecting method thereof realization one-trip string just can finish all packer set, deblocking, only need that each beats once pressure from oil pipe and sleeve pipe, just can realize three layers of water detection by the rod-type pumping unit pumping, its constructing operation is convenient.
Four, description of drawings:
Accompanying drawing 1 is the main structure schematic diagram of most preferred embodiment user mode of the present invention,
Accompanying drawing 2 partly cuts open structural representation for the master of the user mode of three layers of water detection switch valve of oil-pumping well in oil field in the accompanying drawing 1 in looking for, during lower layer of water looks,
Accompanying drawing 3 partly cuts open structural representation for the master of the user mode of three layers of water detection switch valve of oil-pumping well in oil field when looking for upper water in the accompanying drawing 1 looks,
Accompanying drawing 4 partly cuts open structural representation for the master of the user mode of three layers of water detection switch valve of oil-pumping well in oil field in the accompanying drawing 1 when playing lower tubular column looks,
The master that accompanying drawing 5 is a water detection Y211 packer for the interchangeable layer of water detection packer in a kind of bottom in the accompanying drawing 1 looks and partly cuts open structural representation,
Coding in the accompanying drawing is respectively: 1 is top connection, and 2 is screw, and 3 is adapter sleeve, and 4 is shear pin, and 5 is O type circle, and 6 is piston bush, and 7 is O type circle, and 8 is snap ring, and 9 is the snap ring pressure cap, and 10 are lower contact, and 11 is the anti-rotation pin, and 12 is baffle ring; 13 is constant pressure check valve, and 14 is bottom interchangeable layer water detection packer, and 15 be middle packer, 16 for top can unidirectional pressure-bearing packer, 17 is the water detection switch valve, 18 is rod-type pumping unit, 19 is oil pipe; 20 is the upper strata, and 21 is the middle level, and 22 is lower floor.
Five, the specific embodiment:
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Below in conjunction with most preferred embodiment and accompanying drawing the present invention is further described:
As shown in Figure 1, three layers of searching pipe column of this oil-pumping well in oil field comprise packer 16, water detection switch valve 17 and the rod-type pumping unit 18 that the interchangeable layer of constant pressure check valve 13, bottom water detection packer 14, middle packer 15, top can unidirectional pressure-bearings, and be joined together to form tubing string with oil pipe 19 by order from bottom to top, bottom interchangeable layer water detection packer 14 adopts a reversal valve in its central tubes, upper packer 16 adopt have in it one way valve can unidirectional pressure-bearing packer or cup packer that upper packer 16 adopts its bowl-shape packing element openings to make progress.
Can according to actual needs three layers of searching pipe column of above-mentioned oil-pumping well in oil field be made further optimization and/or improvements:
Shown in accompanying drawing 2 to 4, above-mentioned water detection switch valve can adopt the water detection switch valve that the oil field is used in the prior art, above-mentioned water detection switch valve also can adopt water detection switch valve as shown in Figure 2, this water detection switch valve comprises top connection 1, adapter sleeve 3, piston bush 6 and lower contact 10, at the middle part of top connection 1 inlet opening in the upper strata is arranged, in the bottom of top connection 1 inlet opening in the middle level is arranged, piston bush 6 can be enclosed within the middle and lower part of top connection 1, the bottom of adapter sleeve 3 is socketed in the top of lower contact 10, the top of adapter sleeve 3 is enclosed within the outside of piston bush 6, the upper end of adapter sleeve 3 is fixedly mounted in the top connection 1, inlet opening outside the upper strata is arranged at the top of adapter sleeve 3, piston bush 6 can slide up and down in the annular chamber between top connection 1 and the adapter sleeve 3, piston bush 6 when the middle part of top connection 1, can make in the upper strata inlet opening close and in the middle level inlet opening open and communicate with the inner chamber of lower contact 10, piston bush 6 the bottom of top connection 1 Shi Neng make in the middle level inlet opening close and in the upper strata inlet opening open and communicate with inlet opening outside the upper strata.
Shown in accompanying drawing 2 to 4, in the bottom of top connection 1 snap ring 8 is installed, and snap ring 8 preferably is installed in the bottom of top connection 1 by snap ring pressure cap 9; Piston bush 6 is fixedly mounted on the middle part of top connection 1 by shear pin 4.As shown in Figure 2, in the bottom of adapter sleeve 3 the draining hole is arranged; Between adapter sleeve 3 and lower contact 10, anti-rotation pin 11 is installed; Between top connection 1 and the piston bush 6, between piston bush 6 and the adapter sleeve 3, have at least one at least one O-ring seals is installed between adapter sleeve 3 and the lower contact 10, as: between top connection 1 and piston bush 6, O-ring seals 5 is arranged, between piston bush 6 and adapter sleeve 3, O-ring seals 7 is arranged; The baffle ring 12 that can block adapter sleeve 3 is installed at lower contact 10 middle parts.
As shown in Figure 1, adopt the groundwater prospecting method of three layers of searching pipe column of above-mentioned oil-pumping well in oil field to be undertaken by following step:
The first step is installed three layers of searching pipe column of oil-pumping well in oil field, and packer 16, water detection switch valve 17 and rod-type pumping unit 18 that can unidirectional pressure-bearing with constant pressure check valve 13, bottom interchangeable layer water detection packer 14, middle packer 15, top be joined together to form behind the tubing string in the lower going-into-well with oil pipe 19 by from bottom to top order;
Second step set, and after putting in place under the above-mentioned tubing string, set the packer 16 that bottom interchangeable layer water detection packer 14, middle packer 15 and top can unidirectional pressure-bearings, and upper strata 20, middle level 21,22 3 water detection intervals of lower floor are separated respectively;
The 3rd the step pumping lower floor 22, the plunger of rod-type pumping unit 18 is lowered to the pump work tube, the dress well head begins direct pumping lower floor 22, after lower floor's 22 pumping are intact, sampling, analyze moisture;
The 4th goes on foot pumping middle level 21, plunger with rod-type pumping unit 18 proposes the pump work tube earlier, suppress from oil pipe 19 then, switch valve cuts out lower floor's 22 oil discharge passages in the bottom interchangeable layer water detection packer 14, simultaneously middle level 21 oil discharge passages are opened, the plunger of rod-type pumping unit 18 is put back to the pump work tube again, and beginning pumping middle level 21 takes a sample, analyzes moisture;
The 5th goes on foot pumping upper strata 20, suppress from well head oil jacket annular space, under setting pressure, the water detection switch valve 17 on top is opened, simultaneously middle level 21 oil discharge passages are closed, the water detection switch valve 17 that the ball-and-seat of the output liquid on upper strata 20 in top can the packer 16 of unidirectional pressure-bearing (if with cup packer then the annular space of output liquid between leather cup and sleeve pipe through) enters top flows into the pump barrels, through sampling, analyze moisture.
Above technical characterictic has constituted most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, selects the technical measures of prior art, satisfies the demand of different situations.For example:
Bottom interchangeable layer water detection packer can adopt (as shown in Figure 5, water detection Y211 packer) that a reversal valve is arranged in its central tube, and by suppressing from oil pipe, this valve can realize cutting out lower layer, opens the middle part layer; Upper packer can adopt have in it one way valve can unidirectional pressure-bearing packer, when when well head oil jacket annular space is suppressed, one way valve closes valve, pressure-bearing not then in the other direction, fluid can enter this packer top oil jacket annular space by one way valve; Upper packer can adopt cup packer, and its bowl-shape packing element opening upwards; The water detection switch valve on top, by suppressing from well head oil jacket annular space, setting under the pressure reduction, this water detection switch valve sliding sleeve is opened and is communicated with the top oil pipe, simultaneously the oil pipe internal channel is closed, close the middle part layer, make upper layer output liquid enter the water detection switch valve on top through unidirectional pressure-bearing packer (or cup packer), enter pump barrel again, thereby realize that oil well pump is to the pumping respectively of three intervals.
Claims (10)
1, three layers of searching pipe column of a kind of oil-pumping well in oil field, it is characterized in that comprising packer, water detection switch valve and rod-type pumping unit that constant pressure check valve, bottom interchangeable layer water detection packer, middle packer, top can unidirectional pressure-bearings, and be joined together to form tubing string with oil pipe by order from bottom to top, bottom interchangeable layer water detection packer adopts a reversal valve in the central tube, upper packer adopt have in it one way valve can unidirectional pressure-bearing packer or the cup packer that upper packer adopts bowl-shape packing element opening to make progress.
2, three layers of searching pipe column of oil-pumping well in oil field according to claim 1, it is characterized in that the water detection switch valve comprises top connection, adapter sleeve, piston bush and lower contact, at the middle part of top connection inlet opening in the upper strata is arranged, in the bottom of top connection inlet opening in the middle level is arranged, piston bush can be enclosed within the middle and lower part of top connection, the bottom of adapter sleeve is socketed in the top of lower contact, the top of adapter sleeve is enclosed within the outside of piston bush, the upper end of adapter sleeve is fixedly mounted in the top connection, inlet opening outside the upper strata is arranged at the top of adapter sleeve, piston bush can slide up and down in the annular chamber between top connection and the adapter sleeve, piston bush when the middle part of top connection, can make in the upper strata inlet opening close and in the middle level inlet opening open and communicate with the inner chamber of lower contact, piston bush the bottom of top connection Shi Neng make in the middle level inlet opening close and in the upper strata inlet opening open and communicate with inlet opening outside the upper strata.
3, three layers of searching pipe column of oil-pumping well in oil field according to claim 2 is characterized in that the bottom of top connection is equipped with snap ring.
4, three layers of searching pipe column of oil-pumping well in oil field according to claim 3 is characterized in that snap ring is installed in the bottom of top connection by the snap ring pressure cap.
5, three layers of searching pipe column of oil-pumping well in oil field according to claim 4 is characterized in that piston bush is fixedly mounted on the middle part of top connection by shear pin.
6, three layers of searching pipe column of oil-pumping well in oil field according to claim 5 is characterized in that the draining hole is arranged at the bottom of adapter sleeve.
7, three layers of searching pipe column of oil-pumping well in oil field according to claim 6 is characterized in that being equipped with between adapter sleeve and the lower contact anti-rotation pin.
8, three layers of searching pipe column of oil-pumping well in oil field according to claim 7 is characterized in that between top connection and the piston bush, between piston bush and the adapter sleeve, have at least one at least one O-ring seals is installed between adapter sleeve and the lower contact.
9, three layers of searching pipe column of oil-pumping well in oil field according to claim 8 is characterized in that the lower contact middle part is equipped with the baffle ring that can block adapter sleeve.
10, a kind of groundwater prospecting method according to claim 1 or three layers of searching pipe column of 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 described oil-pumping well in oil field is characterized in that being undertaken by following step:
The first step is installed three layers of searching pipe column of oil-pumping well in oil field, and packer, water detection switch valve and rod-type pumping unit that can unidirectional pressure-bearing with constant pressure check valve, bottom interchangeable layer water detection packer, middle packer, top be joined together to form behind the tubing string in the lower going-into-well with oil pipe by from bottom to top order;
Second step set, and after putting in place under the above-mentioned tubing string, set the packer that bottom interchangeable layer water detection packer, middle packer and top can unidirectional pressure-bearings, and three the water detection intervals in upper, middle and lower are separated respectively;
The 3rd the step pumping lower floor, the plunger of rod-type pumping unit is lowered to the pump work tube, the dress well head begins direct pumping lower floor, after lower floor's pumping is intact, sampling, analyze moisture;
The 4th goes on foot the pumping middle level, plunger with rod-type pumping unit proposes the pump work tube earlier, suppress from oil pipe then, switch valve cuts out lower floor's oil discharge passage in the bottom interchangeable layer water detection packer, simultaneously the middle level oil discharge passage is opened, the plunger of rod-type pumping unit is put back to the pump work tube again, and beginning pumping middle level takes a sample, analyzes moisture;
The 5th goes on foot the pumping upper strata, suppresses from well head oil jacket annular space, under setting pressure, the water detection switch valve on top is opened, simultaneously the middle level oil discharge passage is closed, the water detection switch valve that the packer that the output liquid on upper strata can unidirectional pressure-bearing through top enters top flows in the pump barrel, through sampling, analyze moisture.
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| CN2006102010060A CN1936269B (en) | 2006-10-17 | 2006-10-17 | Three-layer water-searching pipe column for oil-pumping well in oil field and water-searching method |
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| CN2006102010060A CN1936269B (en) | 2006-10-17 | 2006-10-17 | Three-layer water-searching pipe column for oil-pumping well in oil field and water-searching method |
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| CN1936269A true CN1936269A (en) | 2007-03-28 |
| CN1936269B CN1936269B (en) | 2010-07-28 |
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| CN101748991A (en) * | 2008-11-29 | 2010-06-23 | 新疆石油管理局采油工艺研究院 | Hanging type oil layer protection packer |
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