Her decision to end the three-and-a-half year marriage follows claims that the footballer slept with an American woman during Chelsea's pre-season tour in Seattle last year.
Madonna divorces Guy Ritchie for unreasonable behaviourAshley Cole set for privacy battleLittle Britain star Matt Lucas to divorce partner Kevin McGeeHowever, Vanessa Lloyd Platt, a high-profile divorce lawyer, said: "Ashley could have slept with half the women in England and it would not affect the settlement unless he had been spending their money on them.
"The Coles had a short marriage and no children; the courts treat these cases very differently to 20-year relationships with kids involved. She has independent wealth, so will probably receive half of any assets they built up during the marriage."
Alan Kaufman, head of family law at Finers Stephens Innocent, said Cole's rumoured move to Spain or Italy could have a bearing on the divorce settlement.
He said: "They are both multimillionaires and so it could be a very quick divorce with no claims on either side. They will keep their independent wealth and go their separate ways."
However, Mr Kaufman went on: "If he was to move to Real Madrid for higher wages in the summer, could that impact the settlement? Her lawyers will certainly be keeping an eye on things."
The footballer earns £120,000 a week £6.2 million a year at Chelsea, under a four-year deal signed last year.
He was dubbed "Cashley Cole" after disclosing his autobiography that he almost crashed his car in shock on learning that Arsenal, his former club, was offering him a mere £55,000 per week.
Cheryl Cole earned £1.2 million for her role as a judge on the last series of The X Factor and will make considerably more if she takes up Simon Cowell's offer to become a judge on the planned US version.
She also has a deal as the face of L'Oreal hair products, reported to be worth £500,000, and has banked several million from her career with Girls Aloud.
The couple have a joint fortune of £17 million, according to the most recent "rich lists".
They pocketed £1 million from a glossy magazine for coverage of their wedding. Their Surrey mansion, bought for £3.5 million in 2008, is thought to be worth £6 million now following renovations.
Before their 2006 wedding, the Girls Aloud singer said she found the idea of a prenuptial agreement "disgusting".
"I think that's defeating the point. We're getting married because we're committing ourselves to each other to spend the rest of our lives together. No ifs and buts," she said.
"I think [pre-nups] are disgusting. I could understand if you're 93 and you've got billions of pounds and this 24-year-old wants to marry you in a month. But we're a work in progress, we're going to build our married life together not thinking about if it ever ends."
After the couple wed, Cole added to her tattoo collection by having "Mrs C" inscribed on her neck.