摘要:
A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(OH)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 is —OH or R1.
摘要:
A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state; a plurality of proppant particles disposed in the superabsorbent polymer; an additive comprising a surfactant, a viscose polymer, or a combination thereof, and a fluid to expand the superabsorbent polymer into the expanded state. A process for disposing a plurality of proppant particles in a fracture comprises: disposing a hydraulic fracturing composition in a downhole environment; forming a fracture; disposing the hydraulic fracturing composition in the fracture; breaking the superabsorbent polymer after forming the fracture; and releasing the plurality of proppant particles from superabsorbent polymer. The process also comprises injecting a proppant-free fluid and a proppant-containing fluid in an alternating order into a subterranean formation.
摘要:
An embodiment of a method of evaluating fluid trapping in an earth formation includes injecting a water-based fluid into at least one fluid channel fabricated on a substrate, the at least one fluid channel having a pore structure configured to represent a condition of an earth formation. The method also includes injecting oil into an inlet of the at least one fluid channel until at least a selected amount of the injected oil exits the channel, imaging the fluid channel and determining an amount of remaining fluid in the fluid channel after injection of the oil, the remaining fluid being an amount of the oil and/or an amount of the water-based fluid, and estimating a proportion of the total volume of the fluid channel occupied by the remaining fluid to determine an amount of fluid trapping in the pore structure. The method further includes analyzing the amount of fluid trapping.
摘要:
Described is a method and system for use in evaluating management operations. A current storage configuration in connection with a data storage system is captured. A management operation event relating to the data storage system is simulated without affecting the data storage system. The management operation event is simulated using the current storage configuration in connection with the data storage system. A management operation event output is provided for enabling evaluation of the potential affect of the management operation event in the data storage system in response to simulating the management operation.
摘要:
The productivity of hydrocarbons from hydrocarbon-bearing calcareous or siliceous formations is enhanced by contacting the formation with a well treatment composition which contains a hydrofluoric acid source, a phosphonate acid, ester or salt thereof, a quaternary ammonium salt and an organosilane and, optionally, a boron-containing compound.
摘要:
The productivity of hydrocarbons from hydrocarbon-bearing calcareous or siliceous formations is enhanced by contacting the formation with a well treatment composition which contains a hydrofluoric acid source, a boron containing compound and a phosphonate acid, ester or salt thereof.
摘要:
A corrosion inhibitor package containing an acetylenic amine or acetylenic alcohol enables a sulfur-free method for protecting metal tubulars and equipment. The package has particular applicability in the protection of carbon steel tubulars in high density brines at elevated temperatures. The corrosion inhibitor package may contain a transition metal oxide as a corrosion inhibitor intensifier.
摘要:
Polyboronic compounds and methods of making them are provided. The polyboronic compounds are useful as crosslinking agents. The polyboronic compounds are produced by contacting a polymeric amine with a trialkylborate in the presence of a solvent so that the resulting molecule has more than one B—N bond.
摘要:
A method of reclaiming a well completion brine solution containing metal impurities by introducing to the brine solution an organic chelant of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F-A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1-C36, preferably a C8-C36, hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)-A(J)]w Y6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1-C12 hydrocarbyl group, optionally substituted with one or more substituents selected from the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H, a balanced organic counterion or a balanced counterion of an alkali or alkaline earth metal, Zn or NH4+ or a mixture thereof; m is 0 to 7; n is 1 to 7; r+s+t is 1 or 2; u+v is 1 or 2; and w is 0 to 7 provided when m is 0, no more than one of R1, Y1, Y2 and Y5 can be —H. An organic chelant may be introduced to the brine containing the metal impurities. The brine may contain an oxidizer. Further, the pH of the brine being reclaimed or the brine reclaimed may be adjusted by the addition of a pH adjustment agent.
摘要翻译:一种通过向盐水溶液中引入下式的有机螯合剂来回收含有金属杂质的完井盐水溶液的方法:可以是中性化合物,相应的盐或相应的季盐,其中:D为FA(Y 3 )u(Y4)v; R独立地选自Cp或CpC(O); Cp是任选被一个或多个选自卤素,羟基,硫酸根,CH 2 CO 2 Z或 - (CH 2)n PO(OZ)2基团的取代基取代的C 1 -C 36,优选C 8 -C 36烃基。 每个A独立地选自-N和-P; Y1独立地选自J, - [(F)-A(J)] w Y6和R; J,R1,Y2,Y3,Y4,Y5和Y6独立地选自-H,R, - (F)nCO2Z和 - (CH2)nPO(OZ)2; 每个F独立地选自任选被一个或多个选自卤素,羟基,硫酸根,CH 2 CO 2 Z或 - (CH 2)n PO(OZ)2基团的取代基取代的C 1 -C 12烃基; Z是-H,碱金属或碱土金属的平衡有机抗衡离子或平衡的抗衡离子,Zn或NH4 +或它们的混合物; m为0〜7; n为1〜7; r + s + t为1或2; u + v为1或2; 并且当m为0时w为0至7,R1,Y1,Y2和Y5中的一个可以为-H。 可以将有机螯合剂引入含有金属杂质的盐水中。 盐水可能含有氧化剂。 此外,可以通过添加pH调节剂来调节回收的盐水的pH值或再生的盐水。
摘要:
An aqueous-based well treatment fluid containing an additive having a median particle size less than 1 micron is suitable for use in a wide variety of well treatment applications including use as a drill-in fluid, thermal insulating fluid, spacer or fluid loss control additive. The fluid may consist of a high density brine. The additive is capable of viscosifying the water or brine. Viscosification of the water or brine may occur in the substantial absence of a polymeric viscosifying agent.