US 12,234,407 B2
Compositions useful for diverting or stopping fluids in subterranean operations
Ambrish Kamdar, Sugar Land, TX (US); and Deepak Patil, Friendswood, TX (US)
Assigned to Finoric, LLC, Beasley, TX (US)
Appl. No. 16/468,443
Filed by Finoric, LLC, Beasley, TX (US)
PCT Filed Jan. 13, 2017, PCT No. PCT/US2017/013422
§ 371(c)(1), (2) Date Jun. 11, 2019,
PCT Pub. No. WO2017/123937, PCT Pub. Date Jul. 20, 2017.
Prior Publication US 2021/0130678 A1, May 6, 2021
Int. Cl. E21B 43/27 (2006.01); C09K 8/50 (2006.01); C09K 8/508 (2006.01); C09K 8/514 (2006.01); C09K 8/518 (2006.01); C09K 8/60 (2006.01); C09K 8/72 (2006.01); E21B 33/138 (2006.01); E21B 43/04 (2006.01); E21B 43/267 (2006.01)
CPC C09K 8/5086 (2013.01) [C09K 8/501 (2013.01); C09K 8/5083 (2013.01); C09K 8/514 (2013.01); C09K 8/518 (2013.01); C09K 8/601 (2013.01); C09K 8/605 (2013.01); C09K 8/72 (2013.01); E21B 33/138 (2013.01); E21B 43/04 (2013.01); E21B 43/267 (2013.01); E21B 43/27 (2020.05); C09K 2208/32 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for moving oilfield liquids in a subterranean formation from high-permeability zones in the subterranean formation to low-permeability zones in the subterranean formations, the method comprising:
a. pumping an acid stimulation fluid into the subterranean formation;
b. pumping a spacer fluid into the subterranean formation;
c. pumping a carrying fluid containing diverting material particles into the subterranean formation, the diverting material particles comprising a mixture of at least:
i. one biphenolic Compound I having the general formula:

OG Complex Work Unit Chemistry
where R1 is optionally selected from the group consisting of: —(CH2)p-, where 1≤p≤6, —S—, —O—, ═N—, —NH—, a phenyl ring, wherein the two rings shown in FIG. 1 is configured in any of the o-, m-, or p-positions;
where R2, R3 are selected from the group consisting of: —(CH2)pCH3, where 1≤p≤5, —H, —SH, —NH2, =O, —OH, a halogen, and a phenyl ring;
where R4, R6 are selected from the group consisting of: —(CH2)p-, where 1≤p≤6, —S—, —NH—, —(CO)—, a phenyl ring, phthalyl, 1-naphthyl, 2-naphthyl, —(CH2)p-CH2(NH)—, where 1≤p≤5, and —(CH2)p-CH2—S— where 1≤p≤5;
where R5, R7 are selected from the group consisting of: —(CH2)p-CH3, where 1≤p≤5, —H, —SH, —NH2, ═O, halogen, —(CH2)p-CH2X, where X is any halogen and 1≤p≤5, phenyl, phthalyl, 1-naphthyl, 2-naphthyl, —(CH2)p-CH2—NH2, where 1≤p≤5, —(CH2)p-CH2—SH, where 1≤p≤5; and
where R8, R9 are selected from the group consisting of: (CH2)p-CH3, where 1≤p≤5, —H, —SH, —NH2, halogen, —(CH2)p-CH2X, where X is any halogen and 1≤p≤5, —OH, phenyl, phthalyl, 1-naphthyl, 2-naphthyl, —(CH2)p-CH2—NH2, where 1≤p≤5, and —(CH2)p-CH2—SH, where 1≤p≤5;
ii. at least one or more mellitic acid derivatives (Compound II) having the general formula:

OG Complex Work Unit Chemistry
where 3≤m≤6;
i) where R1 is selected from the group of: —CO2R2, —(CH2)p-(CO)—R2, 1≤p≤6;
ii) where R2 is selected from the group of: —H, —(CH2)p-CH3, where 1≤p≤5;
iii. a chelating agent (Compound III), selected from the group that consists of ethylene diaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), a nitrilotriacetic acid (NTA), a methylene phosphonate, aminotrismethylene phosphonate, ethylenediaminetetramethylene phosphonate, or Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)),
iv. a polymer (Compound IV) selected to adjust the fluid to a specific gravity approximately equal to the fluid, and selected from the group that consists of polylactic acids, polyglycolic acids, polyolefins, polyesters, polyamides, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, polyvinyl alcohols, polyvinyl acetates, polyvinyl esters, polyacrylates, polysaccharides, chitins, chitosans, proteins, orthoesters, poly(glycolide), poly(c-caprolactone), poly(hydroxybutyrate), poly(anhydrides), aliphatic polycarbonates, poly(orthoesters), poly(amino acids) polyethylene oxide polyphosphazenes, bisphenol-based monomers, isocyanates, copolymers of these monomers, and blends of the polymers or copolymers manufactured from these monomers,
v. plasticizers selected from the group of phthalic esters, polyethylene, ethylene and vinyl acetate copolymers, polyesters, polycarbonates, polyvinyl alcohols, partially-hydrolyzed polyvinyl acetate, and homopolymers, block and graft copolymers thereof; and
vi. corrosion inhibitors selected from the group consisting of alkali metal nitrites, nitrates, phosphates, silicates, benzoates, alkanolamines, ethanolamine, diethanolamine, triethanolamine, the corresponding propanolamines, and morpholine, ethylenediamine, N,N-diethylethanolamine, alpha-picoline, gamma-picoline, piperazine, and isopropylaminoethanol;
c. pumping a spacer fluid into the subterranean formation; and
d. repeating steps (a) (d) as needed.